This is the LRP Competition 2S Li-Poly 55C Hard Case "Big Mama" Battery Pack. Thanks to reformulated cell chemistry, these battery packs are safer and more robust than previous LRP offerings. This makes them ideal and reliable power sources for competition and hobby drivers. They provide longer lifespan and runtimes than any LRP battery has experienced.

The LRP 7000 - Big Mama - 110C/55C - 7.4V LiPo - 1/10 Competition Car Line Hardcase is the classic, powerful all-round battery for different applications. No matter if competition or ambitious hobby driving and no matter if onroad or offroad, the Big Mama is the reliable power source.

The biggest mistake I ever made. 3 months old, swollen up like a balloon, only charged at 1C! AMain lets LRP take care of problems, and I have filled out two forms, which apparently they do not care about. No support Don't buy LRP!!!!!!!!!!!!